常見例句

雙語例句

• The mid-19th century, experienced a mechanical transmission belt chute chute and round, becoming one of the major fine-grained non-ferrous metals ore sorting equipment.
  19世紀(jì)中葉出現(xiàn)了機(jī)械傳動的帶式霤槽和圓形霤槽，成爲(wèi)儅時細(xì)粒有色金屬鑛石的主要選別設(shè)備。
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